What is Wine?

Wine (originally an acronym for "Wine Is Not an Emulator") is a compatibility layer capable of running Windows applications on several POSIX-compliant operating systems, such as Linux, macOS, & BSD. Instead of simulating internal Windows logic like a virtual machine or emulator, Wine translates Windows API calls into POSIX calls on-the-fly, eliminating the performance and memory penalties of other methods and allowing you to cleanly integrate Windows applications into your desktop.

This is the first release candidate for the upcoming Wine 4.0. It marks the beginning of the code freeze period. There have been many last minute changes, so please give this release a good testing to help us make 4.0 as good as possible.